Impact of nutritional status on the oral bioavailability of leucine administered to rats as part of a standard enteral diet.

2010

Summary Background To investigate the absorption and relative bioavailability of leucine administered orally as part of an enteral diet in well and malnourished animals. Methods Two groups – RN (regular nutrition) and PCR (protein-calorie restricted) – were fed with different diets for 23–25 days. Rats from each group were assigned randomly to one of three treatments (water, T-Diet Plus Standard ® (problem) or Isosource ST ® (reference)) administered in single ( N  = 76) or multiple ( N  = 39) doses. Blood samples were assayed for leucine content. Area under the curve (AUC) was calculated by non-compartmental analysis. Log-transformed AUC(s) were statistically compared by analysis of varian…